Currently working on a new type of chart : Beanplot()
It´s an enhanced version of Boxplot.
Boxplots gives a quick view about the structure of a univariate dataset, but remains a black box when it comes to provide clear information about the detailed distribution of this data.
The BeanPlot shows a mirrored estimated density of the distribution, specially usefull to identify multimodal distribution as shown in the picture above (1st serie of data).
This paper provides a good description of Beanplots principles : http://goo.gl/svK8F
And here is the first screenshot of SfE's Beanplot() UDF in progress.... stay tuned.